mossberg



Jan, 27, 1931. o, F MOSSBERG 1,790,482

FIREARH Filed May 16, 19.29 2 Sheets-Sheet 1 Jan. 27, 1931. o. F.MossBERG FIREARM' Filed May 16, 1929 2 Sheets-Sheet 2 Patented Jan. 27,1931 unirte STATES PATENT OFFICE v `r :OSCAR F. IVIOSSBERG, F NEW HAVEN,CONNECTICUT, ASSIGNOR TO O. F. MOSSBERG 8c SONS INC., OF NEW HAVEN,CONNECTICUT, A CORPORATTON FIREABM Appneation filed May 16,

This invention relates to an improvement in firearms and particularly tofirearms ot' the lever-action type though not so limited.

One ot the objects ot' my invention is to provide a firearm with simpleVand eliective means for extracting and ejecting the shells.

Another object ot' my invention is to provide a lever-actionrtirearm ata low cost for j d manufacture with a simple and eective arm rangementof parts acting to simultaneously hold the lever in its retired positionand the breech-block in its breech-closing position.

A further object of my invention is to provide a irearm with a simplearrangement oi parts for automatically eifecting the cocking of thehammer when the breech-block is moved into its breech-opening position.

With the above and other objects in view, my invention consists in alirearm having certain details of construction and combinations andarrangements ot' parts as will be hereinafter described and particularlyrecited in the claims.

In the accompanying drawings:

Fig. 1 is a longitudinal sectional view through the receiver portion ofa firearm embodying my invention, the parts being shown in the positionsdue them when the breechblock is in its breech-closing position and thelever in its retired position after the discharge of a cartridge;

Fig. 2 is a corresponding view but showing the parts in the positionsdue them when the lever is swung downward and the breechblock hasengaged the pivotal ejector and has slightly moved the same;

Fig. 3 is a corresponding view but showing the parts in the positionsdue them when the lever is swung downward to its final position to eectthe ejection of a cartridge-shell from the chamber of the gun;

Fig. l is a transverse sectional view taken on the line 4.-4 of Fig. 1;

Fig. 5 is a detached perspective view of the pivotal ejector; and

Fig. 6 is a similar view of the link which connects the breech-block tothe operatinglever of the firearm. j

in carrying out my invention as herein shown, 1 employ a pivotalbreech-block 10 1929. Serial No. 363,540.

located within a chamber 11 in the gun receiver 12 and hung at its upperrear end upon a pin 13 extending transversely across the said receiver.

The breech-block 10 just above described has pivotally connected to itby means of a transverse-pin 14 the upper end of a link 15, the lowerend of which latter extends into a longitudinal groove 16 formed in theupper face of an operating-lever 17 and is pivotally connected to thelatter by means of a. transverse-pin 18.

The operating-lever 17 just above referred to is pivotally mounted atits forward end, which is located partially within the chamber 11 ot thereceiver, upon a pin 19 extending transversely therethrough and isshaped to form a trigger-guard 2O and a loop-shaped operating-handle 21at its rear end.

Pivotally mounted upon the pin 19 upon which the operating-lever 17swings and having its lower end located in the groove 16 in the saidlever, is a pivotal ejector 22 having an upstanding ejector-arm 23 whichis formed in its extreme upper end with a semicircular shouldered notch24 adapted to receive the lianged rear end of a cartridgeshell 25. Theejector 22 is also formed at its upper rear corner with an abutment-nose26 and at a point nearer the pin 19 upon which it rocks, with anabutment-surface 27 for the purpose as will be hereinafter described.

The breech-block 10 is formed with a longitudinal bore 28 enlarged indiameter at its rear end as at 29 and receiving a reciprocatingtiring-pin 30 having a head 31 located in the enlarged portion 29 andadapted to be engaged by the forward face of a pivotal hammer 32 locatedmainly within the chamber 11 of the receiver andvrocking upon a pin 83extending transversely therethrough.

`The said hammer 32 is formed in its lower end with a half-cock notch 34and with a full-cock shoulder 35 adapted to be engaged by the forwardlyand upwardly pointed nose 36 of a trigger 37 which has its upper endlocated in the chamber 11 in the receiver and is mounted therein upon atransverse-pin 38 and isformed with a linger-piece 39 projectingdownward from the receiver.

The hammer 82 is provided with the usual Vfinger-piece 43 by Vmeans ofwhich it may seated in a conical pocket 45 in the rear face of thehammer 32. The-plunger 45 bearsat its rear end in a -guide-passage-Ll?in thefreceiver l2 and is provided about midway of length with aspring-abutment collar i8 engaged by the forward end, of the; spring40st,.-

the rear end of which bears against the portion of the receiver adjacentthe passage 4:7 therein;

rlhe forward lower edge of the breech- Vblock l0 is cut away to form avtransverse ffl-he sa-idconically-contouredj head 55 ofthe plunger 52 is.adapted to engage either the right-angled notchL 49 which results in theformation upon the said-breech-block of Aan abutment-nose 50 adapted toenga-ge the abutment-surface 27 ofthe ejector and with anabutment-surface 5l adapted to co-act with the abutment-nose` 26 ofthesaid ejector, as will be hereinafter described.

F or thepurpose of simultaneously yieldingly holding the breech-blockl() in its breech-closing position .and theVoperati-ng.- lever l? in itsretired positiom. as shown -iiir Fig. l of the drawings, as Well a-s forpropelling the said `partsinto their downwardlyrocked position. shown inF ig. 3 of the draw-4 ings, after they are manually started toward such`position, l employ a detent-plu-nger 52 reciprocating withinalongitudinal socket 53 located in the breech-block l0 at a point belowand parallel with the firing-pin 80- before described.

rlhe rear end of the said detent-plunger 52 is encircled by a helicalspring 54 which beats at its rear end aga-inst the closed rea-r endl ofthe socket 53 and at its forward end1 iinpi-nges againstA the rear faceof the'conically-contoured head 55 of the said plunger;

lower-sloping face 56 of' a latching-nose 57 formed upon the link l5VVor the upper sloping' face 58 thereof for the kpurpose as y willhereinafter appear.

shown in Fig. l of the drawings, the parts of my improved firearm kareshown in; the positions due `to them immediately after the trigger 37has been operated to release the to swing the operating-lever lldownwardhammer Y32 to the action of its spring ltfor VVand forward bymeans vof its looped handgrip 21. c

ln so doing the link l5 connecting the operating-lever 17 and thebreech-block will eX- ert a downward pull upon the said breechblock withtheeifect of swinging;,its,forward enda'out :of line with the.-chainber' 6.01 iin the vbarrel 615 during which operation thedetentplunger 52 will be eammedrrearward by the nose :5T-ofthe saidYli'nl'; luntil such `time the `higlfi-rpoint ofthe Ksaidnose passes the.apex of the conical head of the said plunger.

' As soon as Vjche just above described action hasnoecurredythe.head 53of the plunger 52.

will ride overtlieupper face 58 of the nose 57 of the linkil and exertany effort to swing the operating-lever- 1:7 and the-breech-zbloickf 10rapidlydownwardv withv the eect offfirst'Y engaging the;Vabutment-surface 514 vof the breech-blocli'with the abutment-nose26rofthe ejector,. as shown in Fig. 2k of the drawings,

so as to rock the' ejector 22 relatively slowly but powerfully rearwardyto loosen c andi slowly extract .the cartridge-shell 25, andthenof'engaging the nose50 of the breech-block 110 with theabutment-surface27of thesaid-ejec-f tor Vfor rocking; the saine morerapidly, with the .ultimate eect offlppingthe. cartridge 25 fromthechamber 60 and causing the saineto: ride rearwardly and upwardly througha,

curved lonitudinal guide-channel 62 formed in the upper edge-ofk thebreech-block. l-O- and thence completely outlo'f vthe firearms.

rlyhe'initiallly-slmmv and powerful movement. ofthe -ejector22 effectedby first engaging the abutment-surface 5l of the breech-block with theabutment-nose 26e-f the ejector is dueto the fact that the said nose 26is locatedl .a

greater distance from the pin 19 upon which the-ejector rocks than isitsabutment-surface engaging surfaces are much nearer the pin 19l uponwhich thef said ejector. rocks. f

I. thus Vprovide a two-speed ejector having,

a relatively-slow but powerfuly initial move-- ment to loosen thecartridge-shell and a fina-l rapid movementto flip or eject.thesameffrom the firearm.

When the breech-block .has been swung;V

downward'by the manipulation of thevoperating-lever 17,' as previouslydescribed', the hammer 32 will be rocked rearward against the tension ofits springlhby a cooking-nose 'i 63 formed .at theprear 4end ofthe said.breechblock and engaging the forward edge ofthe saidhammenasshown inthedrawings. The

said cooking-nosev 63 is Vsciprop-)rtioned las. .to

move the hammer 32 rearward. just enoughv topermit the entry `ofthe nose36. ofthe trigger into the half-cock notch 32 ofthe said.

e pressed means acting upon the detent-nose of the said link toyieldingly hold the said lever in its retired position and the saidbreech-block in its breech-closing position.

2. In a lever-action. firearm, the combination with a pivotaloperating-lever and a pivotal breech-block; of a link connecting thesaid operating-lever and breech-block and formed with a detentfnose; andspringpressed means carried by the said breechl block and acting uponthe detent-nose of the said link to yieldingly hold the said lever inits retired position and the said breech-block in its breech-closingposition.

tor located in the path of travel of the said breech-block; the saidejector and breech-V block being so positioned with respect to eachother that the said breech-block in moving from its breech-closing toits breech-opening position will first engage a portion of the saidejector relatively distant from the pivotpoint thereof and then engage aportion relatively nearer the said pivot-point; and a spring-pressedplunger co-acting with the nose of the said link for swinging the saidbreech-block into engagement with the said ejector Vwhen thebreech-block has been initially movedmanually from its breech-closingposition; whereby the said ejector initially receives a relatively-slowand powerful impulse to loosen a cartridge and subsequently receives amore rapid and weaker impulse to eject the said cartridge from the arm.

In testimony whereof, I have signed this specification.

OSCAR F. MOSSBERG.

3. In a lever-action rearm, the combination with a pivotaloperating-lever and a horizontally-arranged pivotal breech-blockpositioned above the said lever; of a vertica1- ly-arranged linkconnecting the said operating-lever and breech-block and formed with adetent-nose and a horizontallyarranged spring-pressed plunger carried bythe said breech-block and engaging the detent-nose of the said link toyieldingly hold the said lever in its retired position and the saidbreech-block in its breech-closing position.

4. A firearm having a pivotal ejector and a pivotal breech-block adaptedto actuate the said ejector, the said parts being so shaped andpositioned with respect to each other that the said breech-block inmoving from its breech-closing to its breech-opening position will irstengage a portion of the said ejector relatively distant roin thepivot-point thereof and then engage a portion relatively nearer the saidpivot-point; and a spring-pressed member' carried by the saidbreech-block for forcing the same into engagement with the said ejectorafter the said breech-block has been initially moved manually from its fbreech-closing position; whereby the said ejector initially receives arelatively-slow and powerful impulse to loosen a cartridge andsubsequently receives a more rapid and weaker impulse to eject the saidcartridge from the arm.

5. In a lever-action firearm, the combination with a pivotaloperating-lever and a pivotal breech-block; of a link connecting thesaid operating-lever and breech-block and formed with a detent-nose; apivotal ejec-

